Method and system for forming a self-sealing volume
US10549470B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2017 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Oct 11, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2015/03447
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method and system for forming a self-sealing volume includes an elastomeric composite structure. The structure includes layers of a cast polyurethane derived from a neat polyurethane monomer reaction mixture that does not substantially react at room temperature. The polyurethane monomer reaction layer includes a reaction product of an organic polyisocyanate and a reactive hydrogen-containing material reacted with a mixture of a monomeric polyol and polymeric polyols. The structure may further include one or more layers of a fabric that have been precoated with an aliphatic polyurethane, and one or more sealing layers. A fuel impermeable inner liner may be positioned in an inner region. The sealing layers may comprise at least one of partially vulcanized natural rubber (NR), polyisoprene (IR), styrene butadiene (SBR), or a blend of SBR with NR or IR. A dimensionally correct, self-sealing volume may be created by inflating the volume during its cure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.